from sqlalchemy import Column, Integer, String, Text, DateTime, func
from sqlalchemy.orm import DeclarativeBase


class Base(DeclarativeBase):
    pass


class Sample(Base):
    __tablename__ = "samples"

    id = Column(Integer, primary_key=True, autoincrement=True)
    title = Column(String(200), nullable=False)
    content = Column(Text, nullable=False)
    author = Column(String(100), nullable=False)
    created_at = Column(DateTime, server_default=func.now())